Delay Data Source handle update

Fixes #1346
Experiments with output parameter suggestions

See #1353
Remove jQuery.noConflict
Add controls for global field expanding/collapsing in section editor

See #1363
Change logic of Notify initialisation

See #1504
Get default Symphony and page parameters as well
Initialize suggestions on admin level
Suggestion list styling
Keyboard navigation + clean-up
Don't fire window resize on page load, use custom event to adjust tables.
Make sure to use DS handles with dashes and not underscores.
Moving adding of HTTP headers from index.php to FrontendPage and AdministrationPage classes
Adding ‘removeHeaderFromPage’ function to Page class
Merge pull request #1525 from designermonkey/js-tweaks

Remove jQuery.noConflict. Closes #1516
Merge pull request #1529 from nilshoerrmann/fieldtoggle

Add controls for global field expanding/collapsing in section editor. Closes #1363
Merge pull request #1530 from nilshoerrmann/suggestions

Add suggestions to the DS Editor parameter input. RE: #1353
Another fix for MySQL DATETIME values
Merge pull request #1532 from designermonkey/datetime

Another fix for MySQL DATETIME values
Merge branch 'integration' of github.com:symphonycms/symphony-2 into outputparameters

Conflicts:
	symphony/assets/js/admin.js
Merge pull request #1537 from DavidOliver/page-headers

Add new `Page->removeHeaderFromPage` functionality. Closes #1527